AKHIEZER, N.I. <br/><br/>
THEORY OF LINEAR OPERATORS IN HILBERT SPACE 

 - NEW YORK  DOVER  1993 
 - xi+218p.,21x13Cms 
<br/><br/><label>ISBN: </label>978048667748 
<br/><br/><label>Dewey Class. No.: </label>512.897 A3158